Analog Electronics
Class B amplifier is biased

 just at cut-off.
 at midpoint of load line.
None of these
 nearly twice cut-off.

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Analog Electronics
The magnitude of electric current ICBO

  is generally greater in silicon than in germanium transistor.
  depends largely upon emitter-base junction base potential.
  depends largely upon the emitter doping.
  increases with the increase in temperature.

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